Burster imprinter



Dec. 25, 1962 J. J. KESSLER BURSTER IMPRINTER 5 Sheets-Sheet 1 FiledFeb. 6, 1957 Dec. 25, 1962 J. JLKESSLER 3,070,009

BURSTER IMPRINTER Filed Feb. 6, 1957 3 Sheets-Sheet 2 FUSE! Dec. 25,1962 J. J. KESSLER 3,070,009

BURSTER IMPRINTER Filed Feb. 6, 1957 s Sheets-Sheet s United StatesPatent Ofiice Patented Dec. 25, 19%2 3,070,099 BURSzTER IMPRKNTER Each5. Kessier, Qhicago, ilh, assignor to Uarco, incorporated, a corporationof Illinois Filed Feb. 6, 195"), $82. No. 638,519 2 Claims. (til.Hill-227) This invention relates to an imprinter for a continuous formstationery burster.

In many business ofiices, continuous form stationery is used for manyoperations. After some typing or other work is done on the forms, theregenerally remains some imprinting to be done just prior to bursting thestrips into individual form lengths. in the past, a very simpleimprinting roll and impression roll have been placed on a burstingmachine to do this work. There have been serious limitations on theoperation of such imprinters. The ierking of me paper in the burstingmachine allows the imprinting to be done only when the paper isquiescent. This limits the location on the paper to a very shortdistance.

The present invention provides an imprinter which greatly enhances theusefulness of such apparatus and avoids the limitations mentioned above.It is, therefore, the principal object of this invention to provide anew and improved imprinter for continuous form stationery bursters.

Another object is to provide an imprinter of the character describedcapable of printing in any location on the form length.

A further object is to provide an imprinter which may be used to printcontinuously upon the continuous forms being sent through a burstingmachine.

Other objects, features, and advantages of the present invention will beapparent from the following description t 3 is a view similar to FlGURE1 showing particularly the rolls of inking and imprinting mechanism.

The particular stationery With which the present irnprinting apparatusmay be used is best illustrated in FIGURE 2 wherein a continuous stripof stationery is prov with cross lines of weakening such as 4, so thathestrip may be divided in a bursting machine into individual form lengths.The bursting machine general- 13 employs a pair of front coacting rollswhich feed the pa er forwardly to a faster running pair of rear rollswhich grip the leading edge of the strip and burst it from the stripalong the line of weakening. Such a bursting machine is shown in part at5 and includes guide rods 6 and 7 as well as a feed-in roll 3 with aspring biased idler thereagainst for feeding the stationery into theburster. Reference is made to OCcnnell Patent 2,344 720 for theparticular form of the bursting mechani and its opera-Lion.

in front of the bursting machine is placed an imprintmechanism suppliedby an inking mechanism 13. with ink for the imprinting roll. As will benoted in 2, the stationery is led over a pair of pin wheel 'ecd members122. and 12', which maintain the stationery in registry by engaging inthe perforate feed bands 34 at either margin of the stationery. Thedrive to the pin wheel feeds is such that the speed of the paper throughthe imprinting stage is in timed relation to the speed of the paper inthe bursting section. This drive is more clearly illustrated in FIGURE 1wherein a continuous chain 15 obtaining its drive from a sprocket 16 onthe bursting machine passes over a sprocket 17 on the inking mechanismfrom which all of the inking rolls and imprinting rolls are driven. Thespecific drive includes a gear lltl on the same shaft as the sprocket l7and the drive is through gear 19, about which a supplemental gear 29 isrockabie by the bell crank 21 to mesh with the gear 22 directly on theshaft 23 of the imprinting roll 24. The impression roll 25 cooperatingwith the imprinting roll is driven by a gear as at the opposite end ofthe imprinting roll shaft so that the timed relation is always present.

The imprinting roll 24 is intended to be replaced readily by a differentsize of imprinting roll, and in order to accomplish this a handle 27 isattached to slide menbers 28 and 25? at opposite ends of the imprintingunit so notched as to slide into the frame members 3t} and 31. Adifferent size of imprinting roll will have a dif-; ferent size of gear22, which may require the bell crank to be rotated in order to bring thedriving gears into mesh.

Referring particularly to FZGURE 3, an inking mechanism 1]. is providedso that the imprinting can be continuous and quite extensive over theface of the stationery. Thus, a pool of ink is provided. with a slopingbottom 33 with adjusting pins thereon the usual way so as to control theink placed on the surface of the fountain roller 35. The ink istransferred by ductor *6 to the ink roller 37 and thence from thevibrator roll to the form roller 39 so as to deliver it to theimprinting cylinder. The gear 13 from which the drive is obtained is inmesh with gear directly on the shaft of the vibrator roll and providestherefrom the drive for all of the ink rollers. Thus, a timed relationwith the time of the burster is maintained.

Since the size of the imprinting cylinder may be changed, the locationof the inking mechanism may also have to be shifted between thestationery imprinting mechanism la and the bursting mechanism 5. Forthis purpose, idler sprockets 4t} and are carried with the inkingmechanism which is mounted upon a rack 42 movable by pinion when thehandle 34 is turned. The drive relationship is always maintained eventhough the inking mechanism may then travel toward or away from theimprinting station. As will be noted in FIG- URE 2, the side members i-5and 4d of the inking mechanism may slide Within the side members 39 and31 of the imprinting unit.

In order that the imprin g may occur continuously, the efect of thebursting resulting in jerking and moving of the stationery is dampedout; there must be no movement of the stationery at the im nting rolland complete control of the registration is relied upon by the pin wheelfeed. To dampen out all effect of the burster, a dancer roll 47 mountedin the vertical guide maintains a downward loop in the paper whichabsorbs all jerking of the paper by vertical movement of the dancer. Itis known that bursting machines jerk the paper to provide tearing atcross lines of weakening therein and after a form is burst from thecontinuous web, it is fed forwardly faster than the web. Whenever theeffect of bursting passes in a shock to the web just ahead of theimprinter, the dancer roll will move in its support to maintain thepaper web between it and the imprinter taut thus dampening out anyshock, and preventing any sliding of the paper relative to theimprinter.

The present invention provides a relatively inexpensive imprintingmechanism which can operate continuously and in any location oncontinuous form stationery. The drive is obtained from the burstingmachine so that no additional power source is required, and in effecttwo operations may be accomplished as one.

The foregoing detailed description is given for cleargar ens J ness ofunderstanding only and no unnecessary limita tions should be understoodtherefrom as modification will be obvious to those skilled in the art.

1 claim:

1. Imprinting apparatus for use with a continuous stationery strip withspaced cross lines of weakening fed into a bursting machine to obtaingenerally continuous imprinting, While performing bursting operationsupon the strip, comprising: a bursting machine frame, spaced coactingpairs of bursting rolls mounted upon said frame for gripping saidstationery strip to burst the same sequentially at said cross lines ofweakening, said bursting machine frame having means thereon forsupporting a pair of coacting printing rolls positioned to receive saidstrip of stationery in imprinting relation with the rolls in advance ofsaid bursting rolls; positive feed control means including pin Wheelsfor feeding the stationery strip to the imprinting rolls, said feed pinwheels controlling advance of the stationery through the imprintingrolls; a dancer roll beyond the imprinting rolls and a support for saiddancer permitting movement thereof by the stationery strip passing incontact with the dancer roll, said dancer being positioned to maintain ashock absorbing loop in the stationery strip between the imprintingrolls and bursting machine bursting rolls so that said feed controlmeans may advance the stationery to the imprinting rolls free of shockfrom bursting operations upon the strip.

2. Apparatus for printing continuous form stationery simultaneously withbursting the stationery into form lengths, comprisin z a frame; coastingpairs of spaced bursting rolls mounted on said frame for gripping saidstationery to perform bursting operations thereon; a printing mechanismmounted on the frame in advance of said bursting rolls and includingcoacting imprinting and impression rolls; positive feed meansmaintaining the stationery in alignment with the printing mechanism andfor advancing the stationery toward said bursting roils; drive meansconnecting and driving the printing mechanism, positive feed means andbursting rolls in timed relation; an idler roll support between saidprinting mechanism and said bursting rolls; and an idler roll bodilymovable mounted in said support, said stationery pass ing below saididler roll and supporting the weight of said roli whereby to maintain aloop in said stationery between the printing and bursting mechanism forpreventing shock of the latter on the stationery from interfering Withprinting at the former as desired.

References Cited in the file of this patent UNITED STATES PATENTS

